"Biophysikalische Untersuchungen uber Stralung der Materie, Wunchelrute, Elecktrische Wellen (Biophysical Experiments on the Radiation of matter, Divining Rods, Electric Waves", Physiker Dr. Paul E. Dobler, 1939
http://www.tagmadarte.com/PRIVAT/dwn...r-1939-ocr.pdf